<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>

    </title>
    <style>
        *{
            margin: 0;
            padding: 
            0;
        }
       body{
           background-color: #f0f0f0;
       }
        .container{
            padding:   20px;
            width: 1200px;
            min-height: 400px;
            background-color: #fff;
            margin: 0px auto;
        }
        .left{
            
width: 300px;
height: 400px;
background-color: rgb(233, 15, 15);
float: left;
        }
        .center{
            margin: 0 15px;
            width:570px;
height: 400px;
background-color: rgb(22, 236, 104);
float: left;
        }
        .right{
            width: 300px;
        height: 400px;
                float: right;
        background-color: blue;

        }
    </style>
</head>
<body>
    <div class="container">
        <div class="left"></div>
        <div class="center"></div>
        <div class="right"></div>
    </div>
</body>
</html>